The 11.4-mile climb in 100-degree heat is actually an industry standard testing site. I drove it to see what it's like.

California, Arizona and Nevada are urging the Trump administration to change course on the Colorado River. The states are ...

The Lower Basin states of California, Arizona and Nevada are asking for a fresh look at proposals for sharing the shrinking ...

Major John Wesley Powell makes the first recorded trip through the Grand Canyon and down the length of the Colorado River. The one-armed Civil War veteran followed this expedition with a second ...

Representatives of California, Arizona and Nevada are urging the Trump administration to take a different approach in confronting the problems of the water-starved Colorado River. As Trump’s ...